Bootle-sealing cap.



4 No. 793.567. I PATENTED JUNE/27, 1905.

H. COALE & L. s. GREENSFELDBR.

BOTTLE SEALING GAP.

APPLICATION FILED DEG. so, 1904.

cf jZM/i C 0/14 1 I i .j'. 6/?554 11-1054 UNITED STATES Patented June27, 1905.

' PATENT OFFICE.

HARVEY GOALE AND LEWIS S. GREENSFELDER, OF BALTIMORE,

4 MARYLAND.

BOTTLE-SEALING CAP.

SPECIFICATION forming part of Letters Patent No. 793,567, dated June 27,1905. Application filed December 30, 1904. fierial No. 238,998.

To all. 1071 0111. 7125 may concern.-

Be it known that we, HARVEY CoALE and LEWIS S. GREENSFELDER, citizens ofthe United States, residing at Baltimore, Maryland, have inventedcertain new and useful Improvements in Bottle-Sealing Caps, of which thefollowing is a specification.

The invention relates to sealing-caps for bottles of the general classknown as the crown; and it concerns more particularly a sheet-metalsealing-cap carrying permanently within its depending flange a ringpacking adapted to bear on the outer side of the bottle when the closureis set into locking engagement with the shoulder formed on the exteriorof the bottle.

The invention consists in the features and combination and arrangementsof parts hereinafter described, and particularly pointed out in theclaims.

In the accompanying drawings, Figure 1 is a plan view of the improvedbottle-sealing device. Fig. 2 is a part side elevation and partsectional View of the same. Fig. 3 is a sectional view of a bottle withour sealing device applied thereto as a temporary stopper that is,before the sealing-cap is subjected to pressure which forces thedepending flange inwardly and permanently locks the closure to thebottle; and Fig. 4 is a view similar to Fig. 3 with the closurepermanently locked to the bottle-that is to say, with the parts in theposition assumed by them after the flange of the cap has been forcedinwardly to lock the said cap to the exterior shoulder to such an extentas requires the application of considerable force, such as may beexerted by the use of the implement known as the Crown bottle-opener.

In carrying out our invention we make the sealing cap or crown ofsubstantially the shape of a truncated cone. The upper corner, as shownat l, is rounded to fit the bot tle-lip and merges into the flat topportion 2, adapted to extend across the bottle-mouth,

and the downwardly-flaring side or flange 3.

This flange at the point of widest diameter is turned inwardly andupwardly, as at 4, so as to grasp the lower edge of a ring packing 5 ofany suitable materialsuch, for instance, as

rubber. The proportion of the parts is such that the packing lies partlywithin and partly outside of the groove formed by turning inwardly andupwardly the lower edge of the depending flange. This packing is firmlygripped by the upturned edge and is carried permanently by the cap. Itslightly overhangs the upturned edge, and this is rendered morepronounced because of the general conical form of the cap by which thepacking lying along the inwardly-inclined wall or flange has its upperpart of smaller diameter than the lower part, which is grasped by theupturned edge.

It will be observed that the packing-ring is located at some distancebelow the upper side of the cap and in the horizontal plane of theshoulder on the exterior of the bottle, and the relation of the parts issuch that when the cap is placed on the bottle the overhanging orinwardly-projecting free upper part of the packing will engage beneaththe said shoulder and the cap will thereby be retained, requiring slightforce to remove it. A temporary stopper will thus be provided.

When the cap is to be permanently locked to the bottle until such timeas it is desired to remove it by a suitable tool, the depending flangeis forced inwardly in a direction substantially transverse to the aXialline, and this causes the cap to be locked into connection with theshoulder on the bottle or the portion of the bottle-head which is ofsmaller diameter as compared with the upper portion. The locking effect,as illustrated in the present embodiment of our invention, takes placeby the gasket and the lower part of the flange being pressed inwardlybeneath the shoulder on the bottle. When so pressed inwardly, theupturned edge of the depending flange finds room to liewithin the groovebeneath the shoulder on the bottle, and at the same time the packing isforced into strong sealing contact with the bottlc-head. The necessaryclose contact between the rubber packing and the bottle-head is alsoassured without interference on the part of the up- I turned edgebecause of the fact that the packing, as above stated, overhangs orprojects within the vertical plane of the said edge.

We prefer to lock the cap to the bottle by means of a tool known in thisart as the cone-die, and one of the purposes of the conical shape of thecap is to enable the looking effect to be accomplished with such a tool.

We do not limit ourselves to the form of the implement or apparatus foruniting the cap with the bottleas, for instance, a spinning action maybe employed-and while we prefer the conical form of the cap we do notwish to limit ourselves in this particular, as some of the novelfeatures of our invention may be employed in connection with caps of adifferent form from that disclosed herein.

By having the packing below the shoulder and at the extreme lower edgeof the sealingcap it will be remote from the contents, thus preventingcontamination of the same.

We claim as our invention- 1. A bottle-sealing cap having a dependingflange with its edge turned inwardly and upwardly, and a packing-ringheld within the groove between the said upturned edge and the inner sideof the flange, substantially as described.

2. A bottle-sealing cap having a depending flange with its edge turnedinwardly and upwardly and a packing-rin held within the groove formed bythe sai I upturned edge and the inner side of the flange overhanging theupturned edge, substantially as described.

3. A bottle-sealing cap having a depending flange with its edge turnedinwardly and upwardly, and a packing held within the groove formed bythe said upturned edge and the inner side of the flange, said packingprojecting above the said edge and with its upper edge at a distancebelow the top of the cap, substantially as described.

4. A bottle-sealing cap of substantially the form of a truncated coneproviding a depending flaring flange with packing material arranged tolie between the depending flange and the bottle-head, substantially asdescribed.

5. A bottle-sealing cap of substantially the form of a truncated coneproviding a plain depending flaring flange with packing materia carriedpermanently on the mner s1de of said depending flaring flange,substantially.

as described.

6. A bottle-sealing cap having a depending flange flaring outwardly andhaving its edge turned inwardly and a ring packing held within the capby the said edge and lying along theinelinedinnerside of the flange,substantially as described.

7. A bottlesealing cap having a depend ing flange flaring outwardly andhaving its edge turned inwardly and upwardly, and a packing-ring heldwithin the groove formed between said edge and the flaring flange andlying along the inclined inner side of the flange to overhang the saidedge.

8. A bottle-sealingeap of substantially the shape of a truncated conewith the edge of its depending flange turned inwardly and upwardly, andpacking material held within the groove formed between the said upturnededge and the inner side of the flange, substantially as described.

9. A bottle-sealing cap having a packingring on the'inner side of itsdepending flange projecting inwardly beyond the metal of the flange tonormally engage beneath a part of the bottle-head to serve as atemporary stopper, said cap being adapted to be locked to the bottle bybeing deformed by pressure inwardly and transversely to the axial lineof the bottle, substantially as described.

10. In combination with a bottle having a shoulder on its outer side, asealing-cap having a depending flange with its edge turned inwardly andupwardlya packing held thereby, said packing engaging the shoulder andthe upturned metal lying in the groove beneath the bottle-shoulder,substantially as described.

In testimony whereof we aflix our signatures in presence of twowitnesses.

HARVEY COALE.

LEWIS S. GREENSFELDER.

Witnesses:

W. J. BROWNLEY, F. E. FUsTINe.

